syltan
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 Evgeny Kuznetsov
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0 
Questions Answered

syltan:
Group Title
Show that if A is a diagonal matrix with diagonal elements a1, a2, . . . , an, then exp(At) is
also a diagonal matrix with diagonal element…
 updated one month ago
 2 replies
 1 Medal
Mathematics

syltan:
Group Title
One mark is awarded to a correct answer for a multiple choice question; zero mark, otherwise.
Denote the probability that a student knows t…
 updated 9 months ago
 19 replies
 1 Medal
Mathematics

syltan:
Group Title
x + 3y 2z = 4 and 2x + y = 1
what is the line of intersection?
 updated 10 months ago
 31 replies
 1 Medal
Mathematics

syltan:
Group Title
6. Let X and Y be two r.v.s. with E(X) = E(Y ) = 0, Cov(X, Y ) = 1, V (X) = 1 and V (Y ) = 2.
What is the expectation of (X + 1)(X − 3Y )?
…
 updated 10 months ago
 4 replies
 2 Medals
Mathematics

syltan:
Group Title
determine whether vectors are linearly independent
v1=(3,8,7,3) v2=(1,5,3,1) v3=(2,1,2,6) v4=(1,4,0,3)
ok i know to be linearly indepe…
 updated 11 months ago
 11 replies
 1 Medal
Mathematics

babyave95:
Group Title
Calculate the average translational kinetic energy (sometimes just called average kinetic energy)... of one mole of gas at 531 K
 updated 11 months ago
 1 reply
 No Medals Yet
Mathematics

syltan:
Group Title
Problem: A curve C is the locus of points in the xyplane which are equidistant from the point (0,7.25 ) and the line (y=7.25). Identify …
 updated 11 months ago
 13 replies
 2 Medals
Mathematics

syltan:
Group Title
Is it possible to make an output c++ window to be white?
I need somehow to printout a screen out put of program that i wrote.
Any ideas?
 updated one year ago
 6 replies
 1 Medal
Mathematics

syltan:
Group Title
A link list problem, i need some how to sort and print out an object by surname in alphabetical order.
i have a try to do that by this code…
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

cenaida:
Group Title
Write 6.3 x 104 in standard notation.
A. 630
B. 6300
…
 updated one year ago
 4 replies
 2 Medals
Mathematics

syltan:
Group Title
find a vector function that parametrizes the curve C of intersection of the cylinder y^2+4^2=9 and the plane 6xy+2z3=0, oriented clockwise…
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

syltan:
Group Title
need help in c++
somewhere in main
…
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

syltan:
Group Title
integrate x*e^x
 updated one year ago
 3 replies
 2 Medals
Mathematics

syltan:
Group Title
a bag contains 5 blue balls, 3 white balls, 2 red balls.
if we peak 6 balls randomly what is probability to peak 3 blue 2 white and 1 red?
 updated one year ago
 8 replies
 2 Medals
Mathematics

syltan:
Group Title
Suppose A and B are disjoint and P(not A)=0.63
what is min/max value of P(B)
 updated one year ago
 7 replies
 No Medals Yet
Mathematics

syltan:
Group Title
find point of intersection of line and plane.
x=95t , y=1t , z=3+t ;
…
 updated one year ago
 6 replies
 1 Medal
Mathematics

supanick14:
Group Title
[2.05] The sum of two consecutive even integers is 226. What is the larger integer?
114
…
 updated one year ago
 1 reply
 1 Medal
Mathematics

syltan:
Group Title
need help with series agian
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

syltan:
Group Title
help with series
 updated one year ago
 10 replies
 2 Medals
Mathematics

Machida:
Group Title
PHYSICAL LOVE LETTER xD
 updated one year ago
 23 replies
 21 Medals
Mathematics

syltan:
Group Title
Two straight conducting rails form a right angle where their ends are joined. A conducting bar
in contact with the rails starts at the vert…
 updated one year ago
 3 replies
 1 Medal
Mathematics

syltan:
Group Title
integrate root(x^(2)+1)
how to substitute here
 updated one year ago
 19 replies
 4 Medals
Mathematics

syltan:
Group Title
integrate sin(sqrt(a*t)dt
 updated one year ago
 9 replies
 2 Medals
Mathematics

syltan:
Group Title
An infinitely long solid insulating cylinder of radius a = 5.4 cm is positioned with its symmetry axis along the zaxis as shown. The cylind…
 updated one year ago
 3 replies
 2 Medals
Mathematics

syltan:
Group Title
solve in steps sec(xy) = y find dy\dx?
 updated one year ago
 5 replies
 No Medals Yet
Mathematics

syltan:
Group Title
Find all values of x for which the line that is tangent to y = 3x  tan x is parallel to the line
y  x = 2 ?
 updated one year ago
 8 replies
 No Medals Yet
Mathematics

syltan:
Group Title
while sword1 !=1:
print("player 1 buy equpment:")
print("Your money:" + str(money1))
…
 updated one year ago
 5 replies
 2 Medals
Mathematics

Ashley1998:
Group Title
If the planets, moons and other bodies make up 0.15% of the solar system's mass, what percentage does the sun???
 updated one year ago
 2 replies
 1 Medal
Mathematics

megen505:
Group Title
A sound wave traveling at 343 m/s takes 10.0 s to go from a speaker to a detector. How far apart are the two devices?
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

syltan:
Group Title
Howard is the first human who step foot on Planet Funkatron. His first is to determine the force due to gravity,which notice to be quite dif…
 updated one year ago
 2 replies
 1 Medal
Mathematics
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